Brake-shoe.



W. H. HARING.

BRAKE SHOE. APPLICATION rum) MAR. 24, 1908 Patented Dec. 29, 1908v 2 SHEETSBHEET 1.

INVENTOI? W. H. HARING. BRA HOB. PLIOATION r11. MAR. 24, 1900.

Patented Dec. 29, 1908.

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- QWWQL sitar WILLIAM H. HARING, OF SUFFERN,

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NEW YORK, ASSIGNOR TO EDWARD H. FALLOWS, OF NEW YORK, N. Y.

BRAKE-SHOE.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed March 24, 1908. Serial No. 422,934.

nil tom it may concern:

it known that I, WiLLIAM H. HARING, citizen of the United States, and a resit of Sufl'ern, inth'e'county of Rockland and State of New York, have made and more articularly to that .part or portion thereof commonly known and referred to as the steel back, the object being to provide a back made from a single strip of metal, and

with an. integral key-lug- A further object is to rovide a backfor a brake shoe which can eq'uickly and economically made, which may be securely anchored or locked to the body portion throughuagu the entire length thereof, and which be ossessed of suflicient. strength to ii any and all strains which may be 5 upon it.

thee andother ends in view, my tion consists in certain novel features mtruction, as will be hereinafter fully and pointed out in the claims.

in the accompanyilr drawings Figure 1 is pian view of the blank from which the back is formed. Fig. 2 is a plan view of the finished back. Fig. 3 is a perspective view of the back. Fig. 4 is a sectional view taken on the line 44. of Fig 2. Fig. 5 is a sectionalview taken on the line 5-E-5 of Fig. 3. Fig. 6 is a lan view of a brake shoe 1; showing the bac secured to the cast metal body portion. Fig. 7 is a sectional view taken on the line 7-7 of Fig. 6. Figs. 8 and 9 are views similar to Fig. 7, showing slight modifications.

Referring to the drawings, A indicates a blank of steel, wrought iron, or other suitable ductile metal, said blank being'preferably cut from a plate or stripof metal of suitable thickness and of a widthequal to the length of the desired blank, the latter being of somewhat greater length than that of the finished back. The plate or strip is fed to a suitable machine (not shown), by means of which the blanks are cut therefrom, and at the same time, and by the same 0 eration, the metal is punched or perforate, toform openings or recesses B, which are formed at the opposite sides of the transverse median line or the blank, and which are provided r. with straig 161' sides or edges parallel -2 and 3, the

one another as shown at F in Fig. 1, said openings or recesses being spaced apart a dlstance such that the strip of metal E lying therebetween, will have a width equal to the width of the top of the finished keylug. Oppositely disposed notches or recesses C are also formedin the blank at the same time that the openings B are formed,

said notches extending inwardly a suitable distance from the central portions of the sides of the blank, as. clearly shown in Fig. 1. If desired, I may further provide the blank with perforations or openings as is usual in backs of this description, and also with dovetailed notches or recesses D at the ends thereof, through which erforations and notches the molten metal is allowed to run during the casting of the body portion upon.

action. of suitable dies, whereby the metal strip E at the center of the blank, will be forced upwardly, thus fbrming the keylug G, and at the same time, the ends of the blank will be drawn towards one another and given a curvature in the direction of their length corresponding to the curvature of the brake shoe, as shown in Fig. 3, which shows the back in its completed or finished condition.

The key-lug G has recesses or openings H in itsend walls and top, as shown in Figs. ortions of the o enings H at the top ofthe ug being due to t e notches or recesses C, which were formed in the sides ofthe blank, and during the casting of the body pbrtion u on the back the molten metal wilhpass t ough these openings and be anchored to the metal portions K which extend from the upper surface of the keylug to themain portion of the back, thereby providing an extremely firm anchorage between the body of the shoe andthe back at its central portion.

In Figs. 6 and 7 I have shown my improved back having a cast metal body ortion L secured thereto,the metal of the 'ody portion being surrounded by the metal InfFigIS, the metal portions Ker the lug are shown as being embedded within the ill metal of the body portion, as indicated at C, While in big. 9, the entire lugis shown embedded Within the cast metal, as indicated at P. in each instance. however, itwvill be seen that the metal of the body portion is anchored to the lug at the openings in the sides and top thereof, thereby forming a iirm anchorage at the central portion of the shoe.

It will of course be understood that backs of different Widths may be constructed and that keylug's of various Widths and transverse dimensions may be formed depending upon the spacing apart ofthe recesses or openings B, and the depth of the inwardly extending notches C.

it will be seen from the above descriotion that l have provided a metal back which is strong and durable, which may be rapidly and cheaply constructed, which in its manu-- facture comprises but two operations, which may be securely locked to the body portion or earing sole of the shoe {end'its central portion, and in the manufacture of which the loss of metal is reduced to a minimum.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent,is:- I

1. it. back for a brake shoe formed from a single strip of metal and provided with integral key-lug, the end walls of the latter being notched, substantially as described.

2. A. back for brake shoe formed from a single strip of metal and provided with an integral key-lug, said key-lug being provided with openings located partly in the end walls and partly in the top thereof, substantially as described.

3. A brake shoe back comprising a plate of substantially uniform width and an integral key-lug provided with openings in its end Walls, the transverse dimension of said key-lug" being less than the width oi said plate, substantially as described.

4. A brake shoe comprising; a metal l.)()(l portion and a ductile her due; prodded with an opening in its top with which the metal of the bod portion engages, thereby iorming a firm anchorage between said parts, substantially as described.

5. A brake shoe comprising a metal body portion, and a ductile metal plate secured adjacent the back thereof, a ductile metal key-lug secured to said plato and provided with an opening in its top with which the metal of the body portion engages to form an anchorage, substantially as described.

6. A brake shoe comprising a metal bod portion, and a ductile metal plate provided with an integral key-lug secured adjacent the back thereof, said heylug being provided with an o ening in its top with which the metal of the wed-y portion engages to form an anchorage, substantially. as described.

7. A brake shoe comprising a metal body portion, and a dhetile metal plate provided with an integral hey-lug secured adjacent the bacl-c thereof, said l-:e ',"-lu e being provided with openings located partly in its end Walls and partly in its top, with which the metal of. the body portion engages to form an anchorage, substantially as described.

Signed at Mahwah, in the county of Bergen and State of New day of March, A. D. 1908.

FVILLliAlii H. HARING.

Witnesses R. G. CLARK, F. J. Snrironn Jersey, this 21st 75 

